AUTOFRETTAGE METHOD FOR THICK-WALLED PRESSURE VESSEL HAVING A PLURALITY OF HOLES

摘要

PROBLEM TO BE SOLVED: To avoid any local stress concentration by applying autofrettage to holes in a thick-walled pressure vessel having ≥ 4 and ≤ 10 holes one by one, or every other holes.;SOLUTION: In an autofrettage method of a thick-walled pressure vessel having a plurality of holes, the stress distribution is unified by applying the autofrettage to holes (2) one by one or every other holes for the thick-walled pressure vessel (1) having ≥ 4 and ≤ 10 holes (2) concentrically formed therein.;COPYRIGHT: (C)2004,JPO